Relativistic-Amplitude electromagnetic waves - Beating the "magnetic" barrier
Plasma Physics
2018-07-17 v1 High Energy Astrophysical Phenomena
Abstract
The dispersion characteristics of an circularly polarized electromagnetic wave of arbitrary amplitude, propagating in a highly (thermally and kinematically) relativistic plasma, are shown to approach those of a linear wave in an unmagnetized, non-relativistic plasma. Further aided by high relativistic temperatures, the cut-off frequency tends to become negligibly small; as a result, waves with frequencies well below the nominal plasma and the cyclotron frequencies find the plasma to be essentially transparent. This relativistic phenomenon may greatly advance our ability to understand and model the dynamics of a large class of astrophysical and laser-produced high energy density systems.
Keywords
Cite
@article{arxiv.1806.10256,
title = {Relativistic-Amplitude electromagnetic waves - Beating the "magnetic" barrier},
author = {Swadesh Mahajan and Manasvi Lingam},
journal= {arXiv preprint arXiv:1806.10256},
year = {2018}
}
Comments
6 pages; accepted for publication in Phys. Plasmas